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HK1001572A1 - Drive mechanism for a zoom lens - Google Patents

Drive mechanism for a zoom lens

Info

Publication number
HK1001572A1
HK1001572A1 HK98100505A HK98100505A HK1001572A1 HK 1001572 A1 HK1001572 A1 HK 1001572A1 HK 98100505 A HK98100505 A HK 98100505A HK 98100505 A HK98100505 A HK 98100505A HK 1001572 A1 HK1001572 A1 HK 1001572A1
Authority
HK
Hong Kong
Prior art keywords
cam ring
drive mechanism
zoom lens
threads
camera
Prior art date
Application number
HK98100505A
Inventor
Hiroshi Nomura
Original Assignee
Asahi Optical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP13701988A external-priority patent/JP2691562B2/en
Priority claimed from JP1988083593U external-priority patent/JPH0618325Y2/en
Priority claimed from JP1988083595U external-priority patent/JPH0618326Y2/en
Priority claimed from JP1988083592U external-priority patent/JPH0618324Y2/en
Priority claimed from JP8359488U external-priority patent/JPH0645923Y2/en
Priority claimed from JP1988084736U external-priority patent/JPH0544806Y2/ja
Priority claimed from JP1988084733U external-priority patent/JPH0618327Y2/en
Priority claimed from JP1988084734U external-priority patent/JPH0755546Y2/en
Priority claimed from JP1988084735U external-priority patent/JPH0542424Y2/ja
Priority claimed from JP1988089558U external-priority patent/JPH0727451Y2/en
Priority claimed from JP1988089557U external-priority patent/JP2572803Y2/en
Priority claimed from JP1988097075U external-priority patent/JPH082646Y2/en
Application filed by Asahi Optical Co Ltd filed Critical Asahi Optical Co Ltd
Publication of HK1001572A1 publication Critical patent/HK1001572A1/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • G02B7/102—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens controlled by a microcomputer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/009—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/142—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having two groups only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/04—Bodies collapsible, foldable or extensible, e.g. book type
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lens Barrels (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Non-Metallic Protective Coatings For Printed Circuits (AREA)
  • Structure Of Printed Boards (AREA)
  • Blocking Light For Cameras (AREA)
  • Structure And Mechanism Of Cameras (AREA)
  • Glass Compositions (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
  • Lasers (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

The invention relates to an apparatus for a camera for selectively positioning a correcting optical element (61) used during macro-photography in front of the light receiver (72) of a distance measuring device. The camera has a generally cylindrical rotatable cam ring (22) as a part of its lens. The cam ring (22) has a plurality of threads (69) on an exterior cam ring surface, said threads (69) comprising means for selectively engaging said optical element (61) during rotation of said cam ring (22).
HK98100505A 1988-06-03 1998-01-20 Drive mechanism for a zoom lens HK1001572A1 (en)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP13701988A JP2691562B2 (en) 1988-06-03 1988-06-03 Lens barrel
JP1988083595U JPH0618326Y2 (en) 1988-06-24 1988-06-24 Zoom lens barrel
JP1988083592U JPH0618324Y2 (en) 1988-06-24 1988-06-24 Zoom lens barrel with macro
JP8359488U JPH0645923Y2 (en) 1988-06-24 1988-06-24 Actuation mechanism of short-distance correction optical element of lens shutter type zoom lens camera
JP1988083593U JPH0618325Y2 (en) 1988-06-24 1988-06-24 Zoom lens barrel
JP1988084736U JPH0544806Y2 (en) 1988-06-27 1988-06-27
JP1988084733U JPH0618327Y2 (en) 1988-06-27 1988-06-27 Lens barrel
JP1988084734U JPH0755546Y2 (en) 1988-06-27 1988-06-27 Zoom lens with barrier device
JP1988084735U JPH0542424Y2 (en) 1988-06-27 1988-06-27
JP1988089558U JPH0727451Y2 (en) 1988-07-06 1988-07-06 Zoom lens barrel
JP1988089557U JP2572803Y2 (en) 1988-07-06 1988-07-06 Drive mechanism for zoom lens
JP1988097075U JPH082646Y2 (en) 1988-07-22 1988-07-22 Zoom lens barrel

Publications (1)

Publication Number Publication Date
HK1001572A1 true HK1001572A1 (en) 1998-06-26

Family

ID=27583380

Family Applications (5)

Application Number Title Priority Date Filing Date
HK98100505A HK1001572A1 (en) 1988-06-03 1998-01-20 Drive mechanism for a zoom lens
HK98104018A HK1004867A1 (en) 1988-06-03 1998-05-08 Apparatus for selectively opening and closing a photographic opening in a lens cover
HK98104015A HK1004864A1 (en) 1988-06-03 1998-05-08 Apparatus for selectively positioning a correcting optical element in a camera
HK98104016A HK1004865A1 (en) 1988-06-03 1998-05-08 Zoom lens
HK98104017A HK1004866A1 (en) 1988-06-03 1998-05-08 Flexible printed circuit board for a camera

Family Applications After (4)

Application Number Title Priority Date Filing Date
HK98104018A HK1004867A1 (en) 1988-06-03 1998-05-08 Apparatus for selectively opening and closing a photographic opening in a lens cover
HK98104015A HK1004864A1 (en) 1988-06-03 1998-05-08 Apparatus for selectively positioning a correcting optical element in a camera
HK98104016A HK1004865A1 (en) 1988-06-03 1998-05-08 Zoom lens
HK98104017A HK1004866A1 (en) 1988-06-03 1998-05-08 Flexible printed circuit board for a camera

Country Status (8)

Country Link
US (3) US5144493A (en)
EP (5) EP0344806B1 (en)
KR (1) KR970002510B1 (en)
AT (5) ATE173838T1 (en)
AU (4) AU631796B2 (en)
CA (1) CA1331429C (en)
DE (3) DE68929078T2 (en)
HK (5) HK1001572A1 (en)

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Also Published As

Publication number Publication date
EP0609911A2 (en) 1994-08-10
EP0344806A2 (en) 1989-12-06
HK1004865A1 (en) 1998-12-11
EP0609910B1 (en) 2000-01-12
CA1331429C (en) 1994-08-16
AU3404493A (en) 1993-05-13
AU646196B2 (en) 1994-02-10
AU645926B2 (en) 1994-01-27
ATE188781T1 (en) 2000-01-15
EP0609913A2 (en) 1994-08-10
EP0344806B1 (en) 1994-10-12
AU650384B2 (en) 1994-06-16
HK1004867A1 (en) 1998-12-11
EP0344806A3 (en) 1990-09-19
EP0609913A3 (en) 1994-09-21
AU647986B2 (en) 1994-03-31
EP0609912A2 (en) 1994-08-10
EP0609910A2 (en) 1994-08-10
ATE184996T1 (en) 1999-10-15
DE68928864T2 (en) 1999-05-27
ATE173838T1 (en) 1998-12-15
HK1004866A1 (en) 1998-12-11
EP0609912B1 (en) 2000-01-05
EP0609913B1 (en) 1998-11-25
KR970002510B1 (en) 1997-03-05
ATE188554T1 (en) 2000-01-15
KR910001442A (en) 1991-01-30
HK1004864A1 (en) 1998-12-11
AU3602389A (en) 1989-12-07
US5144493A (en) 1992-09-01
US5270868A (en) 1993-12-14
DE68918756D1 (en) 1994-11-17
DE68929078D1 (en) 1999-10-28
AU3404693A (en) 1993-05-13
AU631796B2 (en) 1992-12-10
AU3404393A (en) 1993-05-13
EP0609911A3 (en) 1994-09-21
DE68918756T2 (en) 1995-04-27
US5164757A (en) 1992-11-17
DE68928864D1 (en) 1999-01-07
EP0609912A3 (en) 1994-09-21
AU3404593A (en) 1993-05-13
ATE112862T1 (en) 1994-10-15
DE68929078T2 (en) 2000-02-03
EP0609911B1 (en) 1999-09-22
EP0609910A3 (en) 1994-09-21

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PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20070602